An experimental device for simulating black water scouring of a corrosive material

Abstract

The utility model relates to an experimental device for simulating black water scouring corrosion material, including frame table, frame table right side is equipped with the water storage tank of storing black water of experimental use, and the left side upper portion in water storage tank has the scouring test area, adjustable clamp is provided in the scouring test area, adjustable clamp includes the lifting frame, the first clamping plate and second clamping plate are equipped with on the lifting frame, when the first clamping plate is close or far from the second clamping plate and moves, the material sample used in the experiment is clamped or loosened, and the water spraying pipe that sprays black water to the material sample is installed on the left side surface of water storage tank. The utility model clamps the material sample on adjustable clamp, and the material sample is circulated and scoured and corroded through the water spraying pipe, to simulate the complex environment under the actual condition, accurately test the corrosion resistance of metal material after being scoured by black water for a long time, and the overall structure is simple, convenient operation.

Description

Technical Field

[0001] This utility model relates to the field of metal materials technology, and in particular to an experimental device for simulating the corrosion of materials by black water erosion. Background Technology

[0002] The technique of simulating blackwater erosion of materials is commonly used to study and predict the corrosion behavior of metals and alloys in the petroleum, mining, valve, and other industrial sectors under the influence of aqueous solutions containing sulfides, organic matter, suspended solids, and acidic substances. Because simulated blackwater is typically highly corrosive and can easily damage equipment materials, understanding and simulating this corrosion process is crucial for material selection and the development of corrosion protection strategies.

[0003] Existing experimental setups typically use specific solution ratios to simulate the composition of black water, and then subject material samples to immersion, rinsing, or other corrosion tests under laboratory conditions to evaluate the material's corrosion resistance. However, existing methods have the following drawbacks: First, simulated corrosion conditions in the laboratory may not fully replicate the complex environments of a real-world scenario, such as temperature, pressure, flow rate, and solid particle concentration. Second, laboratory tests are usually limited to short-term corrosion behavior, while long-term corrosion behavior may differ significantly from short-term behavior, limiting the accuracy of predictions. Finally, the experimental setups are large-scale, complex to operate, have certain limitations on material shape, involve the adjustment of multiple components and parameters, and require operators with high levels of professional knowledge and skills. Summary of the Invention

[0004] The technical problem to be solved by this utility model is: in order to overcome the shortcomings of the prior art, this utility model provides an experimental device for simulating the erosion and corrosion of materials by black water.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an experimental device for simulating the erosion of materials by black water, including a frame platform, a water storage tank for storing black water used in the experiment is provided on the right side of the frame platform, a erosion test area is provided on the upper left side of the water storage tank, an adjustable clamp is provided in the erosion test area, the adjustable clamp includes a lifting frame, a first clamp and a second clamp are provided on the lifting frame at a distance, when the first clamp moves close to or far from the second clamp, it clamps or loosens the material sample used in the experiment accordingly, and a water spray pipe for spraying black water onto the material sample is installed on the left side of the water storage tank.

[0006] Specifically, the adjustable clamp includes a base plate fixed inside the water storage tank, a guide sleeve fixed on the base plate, and a lifting frame including a lifting rod, an adjusting rod, and a fixed arm. The lifting rod is vertically and slidably engaged with the guide sleeve. The rear end of the fixed arm is sleeved and fixed to the upper end of the lifting rod after being fixed to the left end of the adjusting rod. A movable arm is slidably provided on the adjusting rod. The second clamping plate is hinged to the front end of the fixed arm. A threaded arm is threadedly connected to the front end of the movable arm. A rolling bearing is provided at the left end of the threaded arm. The left end of the threaded arm is rotatably connected to the inner ring of the rolling bearing. The first clamping plate is hinged to the outer ring of the rolling bearing. A rotating handle is installed at the right end of the threaded arm.

[0007] Preferably, the clamping surfaces of the first clamping plate and the second clamping plate are both V-shaped. The first clamping plate is movably connected to the hinge seat fixed to the outer ring of the rolling bearing by a pin, and the second clamping plate is movably connected to the hinge seat at the front end of the fixed arm by a pin.

[0008] Furthermore, to prevent the movable arm from rotating, an axial groove is provided on the adjusting rod, and an axial protrusion is provided in the sleeve at the rear end of the movable arm to slide in accordance with the axial groove.

[0009] Furthermore, an agitator is installed on the right side of the water storage tank, and a stepper motor that drives the agitator to rotate is installed on the top plate of the water storage tank. A solid feed hopper that can feed solid particles into the water storage tank is fixed on the top plate of the water storage tank next to the stepper motor.

[0010] To facilitate the installation of material samples, an openable cover is installed on the left side of the top plate of the water tank above the adjustable fixture.

[0011] Furthermore, a centrifugal pump is installed on the right side of the frame platform. The inlet of the centrifugal pump is connected to the bottom of the side plate of the water storage tank through an inlet pipe, and the outlet of the centrifugal pump is connected to the spray pipe through an outlet pipe.

[0012] Furthermore, an electronic flow meter is connected to the water outlet pipe, and a radial pressure gauge is connected to the water spray pipe.

[0013] Furthermore, the bottom of the side plate of the water storage tank is connected to a drain valve for emptying the black water in the water storage tank after the experiment.

[0014] The beneficial effects of this utility model are: This utility model clamps the material sample on an adjustable fixture and uses a water spray pipe to circulate and erode the material sample to simulate the complex environment under actual conditions, accurately test the corrosion resistance of metal materials after being subjected to black water for a long time. The overall structure is simple and easy to operate. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1This is a schematic diagram of the external structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the adjustable clamp described in this utility model.

[0019] Figure 4 This is a schematic diagram of the installation structure of the movable arm and adjusting rod described in this utility model.

[0020] In the diagram: 1. Frame platform, 2. Water storage tank, 3. Adjustable clamp, 3-1. Lifting frame, 3-1-1. Lifting rod, 3-1-2. Adjusting rod, 3-1-3. Fixed arm, 3-1-4. Axial slide groove, 3-2. First clamping plate, 3-3. Second clamping plate, 3-4. Base plate, 3-5. Guide sleeve, 3-6. Moving arm, 3-6-1. Axial protrusion, 3-7. Threaded arm, 3-8. Rolling bearing, 3-9. Rotary handle, 4. Water spray pipe, 5. Agitator, 6. Stepper motor, 7. Solid discharge hopper, 8. Cover plate, 9. Centrifugal pump, 10. Water inlet pipe, 11. Water outlet pipe, 12. Electronic flow meter, 13. Radial pressure gauge, 14. Drain valve. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0022] like Figure 1 , Figure 2 As shown, an experimental device for simulating the erosion of materials by black water includes a frame platform 1. The frame platform 1 includes a mounting plate and a frame made of profiles fixed to the mounting plate. The frame on the left side of the frame platform 1 is a triangular frame, and the frame on the right side is a rectangular frame. The rectangular frame on the right side is covered with steel plates to form a water tank 2 for storing the black water used in the experiment. A top plate is fixed to the upper right side of the rectangular frame. An openable cover plate 8 is installed on the left side of the rectangular frame via a hinge. A stepper motor 6 and a solid discharge hopper 7 are installed on the top plate of the rectangular frame.

[0023] The upper left part inside the water tank 2 is the scouring test area. An adjustable clamp 3 for holding the material sample is set in the scouring test area. A water spray pipe 4 for spraying black water onto the material sample is installed on the left side of the water tank 2. A stirrer 5 is installed on the right side inside the water tank 2. A stepper motor 6 is connected to the stirrer 5.

[0024] A centrifugal pump 9 is installed on the mounting plate of the triangular frame on the left side of the frame platform 1. The water inlet of the centrifugal pump 9 is connected to the bottom of the side plate of the water storage tank 2 through the water inlet pipe 10. The water outlet of the centrifugal pump 9 is connected to the water spray pipe 4 through the water outlet pipe 11. An electronic flow meter 12 is connected to the water outlet pipe 11. A radial pressure gauge 13 is connected to the water spray pipe 4. A drain valve 14 is connected to the bottom of the side plate of the water storage tank 2 to drain the black water in the water storage tank 2 after the experiment.

[0025] See also Figure 3 , Figure 4 As shown, the adjustable clamp 3 includes a base plate 3-4. Two crossbars are fixed between the front and rear inner walls of the water storage tank 3, and the base plate 3-4 is fixed between the crossbars. A guide sleeve 3-5 is vertically fixed at the corner of the base plate 3-4. A lifting frame 3-1 is slidably installed inside the guide sleeve 3-5. The lifting frame 3-1 includes a lifting rod 3-1-1, an adjusting rod 3-1-2, and a fixing arm 3-1-3. The lifting rod 3-1-1 is slidably engaged with the guide sleeve 3-5, and the lifting rod 3-1-1 has an axial locking surface so that after the height of the lifting frame 3-1 is adjusted to the correct position, the lifting rod 3-1-1 can be locked by using a set screw to press against the axial locking surface through the guide sleeve 3-5. The rear end of the fixing arm 3-1-3 is sleeved and fixed to the left end of the adjusting rod 3-1-2 and then fixed to the upper end of the lifting rod 3-1-1.

[0026] The adjusting rod 3-1-2 is slidably provided with a movable arm 3-6. In order to prevent the movable arm 3-6 from rotating, the adjusting rod 3-1-2 is provided with a pair of axially symmetrical axial grooves 3-1-4. The sleeve at the rear end of the movable arm 3-6 has an axial protrusion 3-6-1 that slides in cooperation with the axial grooves 3-1-4.

[0027] The fixed arm 3-1-3 has a hinge seat fixed at its front end, which is movably connected to the second clamping plate 3-3 via a pin. The movable arm 3-6 has a threaded arm 3-7 threadedly connected to its front end. The left end of the threaded arm 3-7 is provided with a rolling bearing 3-8, which is rotatably connected to the inner ring of the rolling bearing 3-8. The outer ring of the rolling bearing 3-8 is fixed with a hinge seat, which is movably connected to the first clamping plate 3-2 via a pin. This prevents the first clamping plate 3-2 from rotating when the threaded arm 3-7 rotates. A rotating handle 3-9 is installed at the right end of the threaded arm 3-7.

[0028] The clamping surfaces of the first clamping plate 3-2 and the second clamping plate 3-3 are both V-shaped, which allows for better clamping of the material sample. The height of the first clamping plate 3-2 and the second clamping plate 3-3 can be adjusted by raising and lowering the lifting frame 3-1. The position of the moving arm 3-6 on the adjusting rod 3-1-2 is adjusted, and the moving arm 3-6 is locked with a set screw. By rotating the handle 3-9 to rotate the threaded arm 3-7, the first clamping plate 3-2 can move closer to the second clamping plate 3-3 to clamp the material sample used in the experiment. After the experiment, the first clamping plate 3-2 moves further away from the second clamping plate 3-3 to release the material sample and remove it.

[0029] During the experiment, clean water is first introduced into the water storage tank 2. Then, solid particles of a certain proportion are added to the clean water from the solid discharge hopper 7 to form the black water required for the experiment. The cover plate 8 is opened, and the material sample to be tested is clamped between the first clamping plate 3-2 and the second clamping plate 3-3. Then, the cover plate 8 is closed, and the stepper motor 6 is started to drive the stirrer 5 to rotate, so that the black water is fully mixed. The centrifugal pump 9 is turned on, and the mixed black water in the water storage tank 2 is extracted through the water inlet pipe 10. The black water outlet pipe 11 sprays out from the water spray pipe 4 to circulate and erode the material sample clamped on the adjustable fixture 3 for a certain period of time. After the test is completed, the material sample is removed for testing, and the drain valve 14 is opened to discharge the black water from the water storage tank 2.

[0030] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An experimental device for simulating black water flush corrosion of materials, comprising a frame table (1), characterized in that: The frame platform (1) is provided with a water storage tank (2) on the right side for storing black water used in the experiment. The upper left side of the water storage tank (2) has a scouring test area. An adjustable clamp (3) is provided in the scouring test area. The adjustable clamp (3) includes a lifting frame (3-1). A first clamp (3-2) and a second clamp (3-3) are provided on the lifting frame (3-1) at a distance. When the first clamp (3-2) moves close to or far from the second clamp (3-3), it clamps or loosens the material sample used in the experiment. A water spray pipe (4) for spraying black water onto the material sample is installed on the left side of the water storage tank (2).

2. The experimental apparatus of claim 1, wherein: The adjustable clamp (3) includes a base plate (3-4) fixed inside the water storage tank (2), and a guide sleeve (3-5) fixed on the base plate (3-4). The lifting frame (3-1) includes a lifting rod (3-1-1), an adjusting rod (3-1-2), and a fixed arm (3-1-3). The lifting rod (3-1-1) is vertically slidably engaged with the guide sleeve (3-5). The rear end of the fixed arm (3-1-3) is sleeved and fixed to the left end of the adjusting rod (3-1-2) and then fixed to the upper end of the lifting rod (3-1-1). A movable arm (3-6) is slidably mounted on the section rod (3-1-2); the second clamping plate (3-3) is hinged to the front end of the fixed arm (3-1-3), and a threaded arm (3-7) is threadedly connected to the front end of the movable arm (3-6). A rolling bearing (3-8) is provided at the left end of the threaded arm (3-7), and the left end of the threaded arm (3-7) is rotatably connected to the inner ring of the rolling bearing (3-8). The first clamping plate (3-2) is hinged to the outer ring of the rolling bearing (3-8), and a rotating handle (3-9) is installed at the right end of the threaded arm (3-7).

3. The apparatus of claim 2 wherein: The clamping surfaces of the first clamping plate (3-2) and the second clamping plate (3-3) are both V-shaped. The first clamping plate (3-2) is movably connected to the hinge seat fixed to the outer ring of the rolling bearing (3-8) by a pin, and the second clamping plate (3-3) is movably connected to the hinge seat at the front end of the fixed arm (3-1-3) by a pin.

4. The apparatus of claim 3 wherein: The adjusting rod (3-1-2) is provided with an axial groove (3-1-4), and the sleeve at the rear end of the moving arm (3-6) has an axial protrusion (3-6-1) that slides in cooperation with the axial groove (3-1-4).

5. The apparatus of claim 1 wherein: A stirrer (5) is installed on the right side of the water storage tank (2). A stepper motor (6) that drives the stirrer (5) to rotate is installed on the top plate of the water storage tank (2). A solid feed hopper (7) that can feed solid particles into the water storage tank (2) is fixed on the top plate of the water storage tank (2) next to the stepper motor (6). ​ 6. The apparatus of claim 1 wherein: An openable cover (8) is installed on the left side of the top plate of the water tank (2) above the adjustable clamp (3).

7. The experimental apparatus of claim 1 wherein: A centrifugal pump (9) is installed on the right side of the frame platform (1). The water inlet of the centrifugal pump (9) is connected to the bottom of the side plate of the water storage tank (2) through the water inlet pipe (10), and the water outlet of the centrifugal pump (9) is connected to the water spray pipe (4) through the water outlet pipe (11).

8. The apparatus of claim 7 wherein: An electronic flow meter (12) is connected to the water outlet pipe (11), and a radial pressure gauge (13) is connected to the water spray pipe (4).

9. The apparatus of claim 1 wherein: The side plate bottom of the water storage tank (2) is connected with a drain valve (14) for emptying the black water in the water storage tank (2) after the experiment.

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